Jack,
That belt looks ideal for the job. To join my belt I made sure that each end was in the middle of a tooth to ensure ample area to bond, slid a length of heat shrink tube on belt then used Araldite rapid (sets in 5mins) to glue the joint. Held the belt in place until glue held but was still slightly tacky then slid tubing in place over joint and added heat to shrink ensuring a good strong bond 🙂
Regards
Alun